摘要
本文以改善重力坝坝踵区应力分布为目标,设想建坝初期在坝体上游基岩部位设置一条人工预置缝,通过对预置缝几种设置位置、长度情况下的应力计算、比较,对在坝体上游基岩部位设置人工缝改善重力坝坝踵区应力分布规律进行分析。
By means of the objective improving the stress distribution in the gravity dam heel zone, the author supposes a existed fissure in advance on bed rock of dam boy upstream at the initial stage of dam construction. The stress distribution law improved by the existed fissure is analyzed through the calculation and the comparison of the stress under the condition of many positions and lengths of the existed fissure.
出处
《东北水利水电》
2003年第6期7-8,12,共3页
Water Resources & Hydropower of Northeast China
关键词
重力坝
坝踵
应力
预置缝
gravity dam
dam heel
stress
existed fissure in advance
